環境議題 | 本集 精彩教學影片(講解老師:Chris & Bernice 老師)
Noise pollution is a source of stress.
When we think about pollution, most people imagine things like hazy air, dirty water, and litter in the ocean. Did you know there is another kind of pollution that is completely invisible?
Noise pollution is common in cities around the world, and it can create serious health problems for humans and animals. The constant noise from traffic, construction, and airplanes can affect our hearing and stress levels.
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Sound is measured in decibels (dB). A barking dog has a loudness level of about 70 dB, and a car horn is about 90 dB. The loudest cities in the world are at a level of about 100 dB. Studies have shown that when noise is above 30 dB, it becomes difficult for people to get a good night’s sleep. What’s worse, noise above 70 dB over a period of time can damage a person’s hearing.
When people are exposed to loud noises all the time, they can develop higher blood pressure, hearing loss, and increased stress levels. It can also be difficult for people to focus and think clearly. For animals, noise pollution changes their natural breeding cycles and could be one of the factors that leads to the extinction of some species.
Mark smokes all the time.
馬克總是在抽菸。
請圈選出最適當的選項以完成句子
❶ Dan picked up the (courage / litter / border) and threw it away in a nearby trash can.
❷ Melissa (damaged / realized / maintained) her car’s side mirror by accident while parking.
❸ Stan provided (private / natural / constant) support to his friend during difficult times.
答案: 1. litter 2. damaged 3. constant
噪音汙染是壓力的來源。
當我們想到汙染時,大多數人會想到諸如霧霾、髒水和海洋垃圾之類的東西。你知道還有另一種完全看不見的汙染嗎?
噪音汙染在世界各地的城市中都很常見,它會對人類和動物造成嚴重的健康問題。來自交通、施工和飛機的持續噪音會影響我們的聽力和壓力值。
聲音的測量單位是分貝(dB)。在吠叫的狗有七十分貝左右的響度,汽車喇叭的響度約為九十分貝。世界上最吵鬧的城市則約為一百分貝。研究表明,當噪音超過三十分貝時,人們就很難睡個好覺。更糟的是,超過七十分貝的噪音持續一段時間後會損害人的聽力。
當人們一直暴露在喧鬧的噪音中時,他們可能會出現血壓升高、聽力喪失和壓力值增加的情況。人們也難以集中注意力並清晰思考。對於動物來說,噪音汙染會改變牠們的自然繁殖週期,並可能是導致某些物種滅絕的因素之一。